Winding-machine



, E. F. HULB-ERT.

4 WINDING MACHINE. APPLICATION FILED DEC. 27, 1917. RENEWED OCT. 25,1920.

6 SHEETSSHEET WITNESSES INVENTOH E. F. HULBERT.

WINDING MACHINE.

APPLICATION map DEC. 27. 1917. RENEWED OCT. 25, 1920.

1,380,105. Patented May 31,1921.

6 SHEETSSHEET 3.

INVENTOR E. F. HULBERT. wmome MACHINE. APPLICATION FILED DEC. 27, l9l-7. RENEWED OCT. 25, 1920.. 1 380 105. I Patented May 31, 1921. j 6suns-sun 4.

' WITNESSES F. H'ULBERT.

I WINDING MACHINE.

APPLICATION FIL ED DEC. 27, I917- R ENEWED OCT. 25, I920. 1,380,105o

Patented May 31, 1921 6 SHEETS-SHEET 5.

INVENTOR \M e; mam @11 v wmnms MACHINE. APPLICATION FILED mac-.27, I917.BENE'WEDOCT, 25} 1920.

$1,380,105; e ysm zi;

a SHEETS-SHEET e.

I wim ssszs Y INVENT Y .emw iimi unites stares serene easiest EDWIN F.HULBERT, OF MILWAUKEE, "WISCOIBTSI N, ASSIGNOR TO NATIONAL PAPER I CANCOMPANY, OF MILWAUKEE, WISQONSIN, A CORPORATION OF DELAWARE.

WINDING-MACHINE.

Application filed December 27, 1917, Serial No. 209,186. Renewed October25, 1920. 7 Serial .No. 419,485.

T 0 allwhom it may concern:

Be it known that I, EDWIN F. HULBERT, a citizen of the United States,residing at Milwaukee, in the county of Milwaukee and State ofWisconsin, have invented a new and useful Improvement inWinding-Machines, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, formingpart of this specification, in which:.

Figure 1 is a side elevation of the ma-. chine.

Fig. 2 is a side elevation, partly in section, of the conveyer andshear.

Fig. 3 is an end elevation of the shear.

Fig. 4 is a detailed end view, partly in section, showing the printingroll gear.

Fig. 5 is a'vertical section along the line .V-,- V of Fig. 4.

Fig. 6 is a sectional view through the winding head of the machineshowing the mandrel.

Fig. 7 isa vertical section on the line VII-VII of Fig. 6.

Fig. 8 is an end elevation of the-brake rolls and belt driving pulley.

Fig. 9 is a side elevation ofthe brake rolls and belt driving pulley.

Fig. 10 is a section on the line X-X of the Fig; 9.

Fig. 11 is a longitudinal section through the shear operating conta-ctorbox, and

Fig. 12 is a section on the line XII'XII of Fig. 11..

The present invention relates to winding machines and more particularlyto machines for winding strips of paper or the like into shells. Theseshells are usually open-ended shells to be subsequently used in themanufacture of paper cans or cartons. The pre'sent invention relatesparticularly to the mechanism for properly supplying strips of papertothe mandrel or former upon which the shell is'wound.

Referring to the embodiment of the invention illustrated in thedrawings, the paper shell is wound on a mandrel 2. The mandrel issubstantiallysurrounded by a chain '3 which serves to press the wraps ofpaper firmly together to form the shell. T he layers of paper in theshell are cemented together preferably by a waterproofing material suchas paraffin After the shell is wound on the mandrel 2 it is ejectedtherefrom by a stripper 4 which moves length- Specification of LettersPatent. I Patgntcd fii y 31 1921i;

in severed strips of variable length depending upon the diameter of theshell to be formed and the number of wraps or layers to be wound in theshell, The strips of paper fed to the winding mandrel may also haveprinting upon them. If the strip is printed, it is n eces'sarythat'itsend be sev-.

ered with predetermined relation tothe' location of the printingthereon.

The paper is" supplied in a roll 10 of the proper width. The roll 10 iscarried on a roll stand provided with frictiontension rollers 11. Thepaper then'pa'sses around a continuously driven roll 12 which alsopref-- erably serves as a platen for the printing mechanism. The stripof paper is fed from y the roll 12 onto a conveyerr13 to a shear 14which cuts the paper into strips of a predetermined length. These stripsare carried by the conveyor to a pairof rolls 15 which feed it to themandrel 2 and also act as ten- 1 sion rolls. 1

The machine is driven by an electric motor 20 which has two oppositelyextending driveshafts 21 and 22 respectively. .The driveshaft 21 drivesthe winding mandrel and its .drel 2makestwelve revolutions foreachrevolution of the main spur gear 24;. The twelve revolutions of themandrel 2 constitute one cycle of the machine. During four of thesetwelve revolutions the ejector 4 which strips the completedshell fromthe mandrel, travels forward and back. This leaves eight revolutionsduring which it is possible to windthe shell. The chain 3 is driven bycontact with the mandrel 2. During the shell ejecting operation thechain is freed from the mandrel and becomes greatly reduced in speed orbecomes stationary. After the shellis ejected the chain is-againtightened around the mandrel and picks up speed 25 These requirementsare met by the feeding therefrom. During about, the first revolubetweenthe chain and mandrel as soon as ferent number of wraps.

possible after the chain has tightened on the mandrel. For otherclasses. of work, and

particularly for heavier grades of paper, it

is preferable to delay introducing the end of the strip between. thechain and the mandrel until the chain has picked up its speed from themandrel. Itis therefore necessary that the introduction of the end ofthe cut strip of paper into the winding head be properly timed withrelation to the cycle of shell winding and stripping operations.

Moreover different sized mandrels are employed in the machine. Theshells for different diameters, and shells of the same diameter fordifferent purposes require a dif- Therefore it is also necessary thatthe length of the strip fed to the winding mandrel 2 be varied.

and shearing mechanism which take the continuous strip of paper, feed itat the proper rate, cut it into proper lengths, and deliver it in propertimed relation to the cycle of shell forming operations.

The roll 12 which feeds the paper from the supply 10 to the shear 14 iscontinuously driven from the. shaft 22 through intermediate gearing. Aworm 30 on the driveshaft 22 meshes with a worm gear 31 on the shortshaft 32. On the other end of the shaft 32 v is carried removablegearwheel 33. The gear ratio of the worm drive is" such that the shaft32 and gear 33 rotate at the same number of revolutions per minute asthe main. spur gear 24. The shaft 32 is carried in a verticallyadjustable box 34 to permit different sized gears 33 to be employed. Thegear 33 has on one side a continuous series vof teeth 35 and on theother side a mutilated gear having a fixed number of teeth 36. Thenumber of teeth in 35 varies with the size of the gear wheel 33 but thenumber of teeth 36 remain the same for all sizes of gear wheels whichare used in. the machine. The teeth 35 mesh with a pinion 40 carried onthe end of the driveshaft 41 of the cylinder 12. The teeth 36 of themutilated side of the gear mesh with a pinion 42 formed on the hubextension 43 of the gear wheel 44. The hub 43 with its pinion 42 andgear 44 are mounted and are free to turn onthe shaft 41. The gear 44meshes with two ears 45 The printing cylinders 47 and 48 carry plateswhich print the strip of paper in. two colors as it passes around theplaten cylinder 12. Theprinting rolls 47 and 48 are supplied tions.

and 46 which are mounted on the shafts of p .and drive the printingcylinders 47 and 48..

with ink by any suitable inking mechanism. (Not shown.) f

By means of the mutilated gear" 36 the printing cylinders 47 and 48 areintermittently rotated, and are given one revolution for each cycle ofthe shell winding opera- The gear 33 makes one revolution for eachrevolution of the main spur gear 24. The number of teeth in themutilated gear 36 is'the' same for all sizes of gear wheels 33 which maybe inserted in the machine, and the printing plate cylinders 47 and 48make one complete revolution for each twelve revolutions of the mandrel2. The number of teeth in the continuous part 35 of the gear 33 varieswith the diameter of this gear. If larger cans or cans with a greaternumber of wraps are to be wound at the mandrel 2, gears 33 of largersizes are used. The size of the gear 33 determines theamount of paperfed for each cycle of operations and by selecting a gear of the propersize. a strip of proper length is fed to the winding mandrel 2. Theprinting cylinders are locked in their inoperative position by a springpressed locking pin50 which engages a hole 51 in the web of thegearwheel 44. The locking pin 50 is withdrawn during the time that thepinion 42 is driven by the mutilated gear 36 by means of the cam 52 onthe side of the gear 36. The cam 52 engages a cam roll 53 and throughthelever 54 withdraws the pin 50.

The strip of paper moves continuously from the platen cylinder "12 ontothe conveyer 13. The strip has printed on it at the proper intervals thelabels which the shells are to hear.

The conveyer 13 consists-of two side rails 60 and between them anendless continuouslytraveling belt 61. The belt is formed of a number ofspirally coiled wires passing over grooved end pulleys 62 and 63. The

end pulley 62 is the driven pulley which the side rails 60 and isadjustable longitudinally thereof. The shear mechanism comprises adownwardly movable knife 65 cutting against knife block 66. The knife 65is operated by means of a solenoid 67 through lever connections 68.

to cut the strip. The position of the shear in the conveyer isdetermined by the length of the strip to be fed to the shell windingmechanism. If a short strip is to be out When the solenoid is energizedthe knife is depressed the shear is moved to about the middle of theconveyer while if a longer strip is to be cut, the shear is moved towardthe platen cylinder 12. By properly positioning the shear along theconveyer 13, the time in the cycle when'the end of the strip enters thewinding -mechanism may be properly adjusted.

' After the shear is positioned on the con- Veyer, the printingmechanism is so timed that the printed label will come at the rear endof the severed strip, so that the label shaft of the main spur gear 24.The con-- tact device 75 consists of the contact box 76, rotatablyadjustable about the shaft and carrying two brushes 77, which contactwith a contacting segment 78, carried by the shaft so. as to momentarilyswitch the current into the knife-operating solenoid 67, and give theknife a rapid cutting stroke. By turning. the box 76, the knife strokeis timed.

After the strip is severed by the vshear,

it is carried forward by the belt conveyer.

As the belt' is running more rapidly than the'movement of the unshearedstrip, the sheared portion is drawn ahead and separated from the end ofthe unsheared strip following. The a strip is guided by side guides 90supported on bars 91 extending between the side rails 60 below the belt.The side guides 90 are laterally adjustable along the rods 91 toaccommodate the different widths of strip.

The severed strip is delivered by the belt to the rolls 15 which SQIXQas feeding-in and tension rolls.

These rolls indicated generally at 15 comprise a lower driven roll 100and upper presser or idler roll 101. The lower roll is driven through amultiple disk friction clutch 102 to allow a certain amount of slip tothe roll when the paper is dragged through it by the mandrel 2. The roll100 is driven by a shaft 108 which extends through the roll and to whichare'locked the driven disks of the clutch 102. An adjustable spring 104is provided for varying the pressure on the multiple disk clutch. The

shaft 103 carries on its end a bevel gear 105 which is driven by apinion 106 on a short position substantall shaft 107. The shaft 107carries a sprocket wheel 108 driven by means of a chain 109 from asprocket wheel 110 carried on the motor shaft 21. The shaft 107 alsocarries another bevel pinion 115 which, through the bevel gear 116drives the belt pulley 62.

The roll 100 is driven at a peripheral speed less than that of themandrel 2. When the end'of the strip is engaged by the mandrel 2, it isdragged forward between the rolls 100 and 101 and these rolls serve as abrake to put a tension on the 'strip,since the friction clutch allowsthe roll 100 to be turned" by the then more rapidly traveling strip.This keeps the paper taut betweenthe brake rolls 100 and 101 and themandrel 2, and assists in the smooth winding of the wraps around themandrel,-

The successive feeding means which operate on the paper successivelyincrease in speed. The platen or strip feedin roll 12 feeds the paper atthe lowest spee When.

the strip is severed the more rapidly moving belt carries the severedstrip forward at an increased speed. The more rapidly moving belt notonly tends to pull out the uncut end of the strip and keep it straight,but

also feeds the severed portion forward to separate it from the followinguncut end. The mandrel which is moving at a still higher peripheralspeed, drags the cut strip of paper rapidly along giving aproperseparation between it and the following strip, so that thefollowing strip does not enter the winding mechanism until the precedingstrip is wound into a shell and ejected from the mandrel. This permitsthe continuous feeding of the paper by the roll 12.

'While the preferred embodiment of the I invention has been specificallyillustrated and described, it is to be understood that the invention isnot limited to its illustrated embodiment but may be embodied in otherstructures within the scope of the following claims.

I claim:

1. A machineof the character described, comprising means adopted toreceive strips and wind them into shells, and means for supplyingprinted strips thereto, comprising a platen cylinder, a printingcylinder cotiperating therewith, a gear for continuously driving theplaten cylinder having a mutilated portion for intermittently drivingthe printing cylinder; substantially as described.

2. A machine of the character described, comprising means adapted toreceive strips and wind them into shells, and means for supplyingprinted strips thereto, comprising a platen cylinder, .a printingcylinder cooperating therewith, a gear for continuous y driving theplaten c linder' having a mutilated. portion for mtermittently drivingthe printing cylinder, and means for lock- .ing the printing cylinder-inits inoperative as described. 3. A,maclnne of t e character described,comprising means for continuously feeding a stri of paper or the like ofindeterminate lengt a conveyer running at faster speed than the feedingmeans, means for severing the strip into predetermined lengths, and aWinding mandrel rotating at a higher peripheral speed than the conveyerfor Winding the severed lengths into shells; substantially as described'4. A machine of the character described, comprising means for feeding astrip of paper or the like'of indeterminate length, means adapted toreceive strips of paper and Wind them into shells, a spring beltconveyer receiving the stri as it is fed and delivering it to theWinding mechanism,

a means on the conveyer for severing the strip into predeterminedlengths; snloetantially as described.

5. A machine of the character described, comprising means forcontinuously feeding and printing a strip of paper or the-like ofindeterminate length, means for severing the strip into predeterminedlengths, means lln testimony whereof, l have hereunto set in hand.

y EDWIN l8. HULBEIT,

